Control and Validation of a Reinforced Power Conversion System for Upcoming Bioelectrochemical Power to Gas Stations
Shahparasti, Mahdi; Rajaei, Amirhossein; Tarraso, Andres; Vidal Leon Romay, Jose David; Luna, Alvaro (2021-06-18)
Shahparasti, Mahdi
Rajaei, Amirhossein
Tarraso, Andres
Vidal Leon Romay, Jose David
Luna, Alvaro
MDPI
18.06.2021
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2022031623728
https://urn.fi/URN:NBN:fi-fe2022031623728
Kuvaus
vertaisarvioitu
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Tiivistelmä
This paper presents a proposal for potential bioelectrochemical power to gas stations. It consists of a two-level voltage source converter interfacing the electrical grid on the AC side and an electromethanogenesis based bioelectrochemical system (EMG-BES) working as a stacked module on the DC side. The proposed system converts CO2 and electrical energy into methane, using wastewater as the additional chemical energy input. This energy storage system can contribute to dampening the variability of renewables in the electrical network, provide even flexibility and grid services by controlling the active and reactive power exchanged and is an interesting alternative technology in the market of energy storage for big energy applications. The big challenge for controlling this system lays in the fact that the DC bus voltage of the converter has to be changed in order to regulate the exchanged active power with the grid. This paper presents a cascade approach to control such a system by means of combining external control loops with fast inner loops. The outer power loop, with a proportional-integral (PI) controller with special limitation values and anti-windup capability, is used to generate DC bus voltage reference. An intermediate loop is used for DC bus voltage regulation and current reference generation. A new proportional resonant controller is used to track the current reference. The proposed scheme has been validated through real-time simulation in OPAL OP4510.
Kokoelmat
- Artikkelit [2604]